Canes are fairly expensive, which results in people who need them only owning one. It is possible to create a much more cost effective solution by using lacrosse sticks, crutch feet, PVC pipe and fittings.
By reducing the cost of the cane, it should be possible to provide more than one cane to a person. Reduced cost would also allow people living in the developing world to have better canes.
There are photos of this project.